中子衍射分析时效处理对镍基单晶高温合金相结构的影响

孙光爱; 陈波; 吴二冬; 李武会; 张功; 汪小琳; V. Ji; T. Pirling; D. Hughes

doi:10.7498/aps.60.086102

摘要

采用振荡和固定两种数据采集模式的中子衍射实验结果表明较高的时效温度对消除枝晶最有效,微应变(晶粒区域间的变形不协调性)主要存在于'相.利用中子衍射结合扫描电子显微镜对合金的微观组织形貌进行了细致观察,给出了时效温度和时间对'相的影响状况,超晶格测量发现了'相晶粒之间出现的独特取向差.由不同晶面的中子衍射结果判断时效后合金出现了轻微的四方对称性(a c)畸变,对这种畸变起主要作用的是基体相.实验结果同时证实了不同方向的应变差异,因而为筏化驱动模型的定量

关键词:

Abstract

The neutron diffraction results obtained by oscillating and fixing during data collection show that the high ageing temperature is effective to eliminate dendrite crystals and the microstrain exists mainly in the ' phase. Based on the microstructure obtained by neutron diffraction and scanning electron microscope, the influence of ageing temperature and time on ' phase are evaluated. The unique misorientations among ' phase grains are observed from superlattice measurements. According to the neutron diffractions of different crystal planes, the crystal symmetry is slightly changed from cubic to quartet (a c) due mainly to the matrix phase and the experimental results also prove the strain deviation in difference orientations, thus providing the basis for the existence of driving force for the raft model. The calculation based on the superlattice diffraction shows that in the interfaces between the and ' phases exists a complex distortion: the mismatch varies from -0.1% to -0.3% and the mismatch value can be reduced by high temperature during the first ageing and long time during the second ageing.

Keywords:

作者及机构信息

1.
中国工程物理研究院核物理与化学研究所,绵阳 621900;

2.
中国科学院金属研究所材料科学国家实验室,沈阳 110016;

3.
巴黎第十一大学奥赛分子化学与材料学院,法国巴黎 91405;

4.
劳厄-朗之万研究所,法国格勒诺贝尔 38042

基金项目: 国家高技术研究发展计划(批准号:2009AA03Z535)、国家自然科学基金(批准号:51071157)、中国工程物理研究院科学技术基金(批准号:2010A0103002)和中国工程物理研究院核物理与化学研究所科学技术创新基金(批准号:2009CX01)资助的课题.

Authors and contacts

1.
Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China;

2.
National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;

3.
Institute of Orsay Molecular Chemistry and Materials, Université Paris-Sud 11, Paris 91405, France;

4.
Institute of Laue Langevin, Grenoble 38042, France

参考文献

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施引文献

[1]	Caron P, Henderson P J, Khan T 1986 Scripta Metal. 20 875
[2]
[3]	Zhang J X, Wang J C, Harada H, Koizumi Y 2005 Acta Mater. 53 4623
[4]	Volkl R, Glatzel U, Kniepmeier M F 1998 Acta Mater. 46 4395
[5]
[6]	Pollock T M, Argon A S 1994 Acta Metall. Mater. 42 1859
[7]
[8]
[9]	Ma S, Seetharaman V, Majumdar B S 2008 Acta Mater. 56 4102
[10]
[11]	Ma S, Brown D, Bourke M A M, Daymond M R, Majumdar B S 2005 Mater. Sci. Eng. A399 147
[12]
[13]	Royer A, Bastie P, Veron M 1997 Scripta Mater. 37 1199
[14]
[15]	Schumacher G, Darowski N, Zizak I, Klingelhoffer H, Neumann W 2009 Scripta Mater. 60 88
[16]
[17]	Chen W, Darowski N, Zizak I, Schumacher G, Klingelhoffer H, Neumann W 2006 Nucl. Instrum. Meth. Phys. Res. B 246 201
[18]
[19]	Darowski N, Zizak I, Schumacher G, Klingelhoffer H, Chen W, Neumann W 2005 J. Phys. D38 A200
[20]	Daymond M R, Preuss M, Clausen B 2007 Acta Mater. 55 3089
[21]
[22]
[23]	Pirling T, Bruno G, Withers P J 2006 Mater. Sci. Eng. A 437 139
[24]
[25]	Wu E D, Zhang J, Chen B, Sun G A, Ji V, Hughes D, Pirling T 2008 J. Phys.: Condens. Matter 20 104255
[26]
[27]	Sun G A, Chen B, Chen H, Wu E D, Zhang J, Ji V, Hughes D, Pirling T 2009 Acta Phys. Sin. 58 2549 (in Chinese) [孙光爱、陈波、陈华、吴二冬、张俊、Ji V、Hughes D、Pirling T 2009 58 2549]
[28]
[29]	Glatzel U, Muller A 1994 Scripta Metall. Mater. 31 285
[30]
[31]	Sun G A, Chen B, Wu E D, Li J C, Pirling T, Hughes D 2009 Chin. Phys. Lett. 26 086201
[32]	Kuhn H A, Biermann H, Ungr T, Mughrabi H 1991 Acta Metall. Mater. 39 2783
[33]
[34]	Starink M J, Thomson R C 2001 J. Mater. Sci. 36 5603
[35]
[36]	Ungar T 2004 Scripta Mater. 51 777
[37]
[38]	Ungar T 2001 Mater. Sci. Eng. A 309310 14
[39]
[40]	Rai S K, Kumar A, Shankar V, Jayakumar T, Bhanu K, Rao S, Raj B 2004 Scripta Mater. 51 59
[41]
[42]	Wang C T 2006 M.S. Dissertation (Shenyang: Shenyang Technology University) p19 (in Chinese) [王春涛 2006 硕士学位论文 (沈阳: 沈阳工业大学) 第19页]
[43]
[44]
[45]	Sun G A, Chen B, Wu E D, Yan G Y, Huang C Q, Li W H, Wu Z H, Liu Y, Wang J 2011 Acta Phys. Sin. 60 016102 (in Chinese) [孙光爱、陈波、吴二冬、闫冠云、黄朝强、李武会、吴忠华、柳义、王劼 2011 60 016102]
[46]	Hutchings M T, Withers P J, Holden T M, Lorentzen T 2005 Introduction to the Characterisation of Residual Stress by Neutron Diffraction (Boca Raton: Taylor and Francis Group) p192
[47]
[48]	Coujou A, Benyoucef M, Clement N 1997 Interf. Sci. 4 317
[49]
[50]
[51]	Yu J J, Sun X F, Zhao N R, Jin T, Guan H R, Hu Z Q 2007 Mater. Sci. Eng. A460461 420
[52]
[53]	Mughrabi H I, Arsenault R J, Cole D, Gross T, Kostorz G, Liaw P K, Parameswaran S P 1996 The Johannes Weertman Symposium (Warrendale: Minerals, Metals and Materials Society) p267
[54]	Mukherji D, Wahi R P 1997 Scripta Mater. 36 1233
[55]

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